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Question
A man pushes an 80-N crate a distance of 5.0 m upward along a frictionless slope that makes an angle of 30°with the horizontal. His force is parallel to the slope. If the speed of the crate decreases at a rate of 1.5 m/s2, then the work done by the man is:
A) -200 J
B) 61 J
C) 140 J
D) 200 J
E) 400 J
Answer
This answer is hidden. It contains 1 characters.
Related questions
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